Specifications

Specifications include,
but are not limited to:The Clayton County Water
Authority (CCWA) is requesting bids from
qualified contractors to furnish all items
including but not limited to labor, supervision,
equipment, tools, products, materials, training,
travel and related expenses to remove existing
and install new fine bubble membrane air
diffusers, and associated products as required
for installation, in two circular aeration
basins located at CCWAs Northeast Water
Reclamation Facility, 6900 Old Macon Highway
Rex, Georgia 30273. Air is supplied to the
aeration basins by three Turblex KA-10, 300 HP
centrifugal blowers, each with a capacity range
of 2,700 to 6,000 SCFM. Normal operation is for
two blowers to operate simultaneously. Blower
system inlet and outlet pressures are 14.24 psia
and 24.24 psig, respectively. The existing fine
bubble membrane air diffusers are the tube type
as manufactured by Schreiber LLC. Each of the
two aeration basins has six diffuser clusters
mounted on a moving bridge and twenty-two
diffuser clusters mounted around the inside
periphery of each basin. Each of the two
aeration basins contains 2,352 fine bubble air
diffusers for a total of 4,704 diffusers. The
contactor may provide bids on two options, as
follows: A. Option No. 1 Replacement of 4,704
fine bubble membrane air diffusers and
associated products including but not limited to
stainless steel membrane clamps, seals, and all
other items required for a complete installation